Home / 1,007,795.57-1,390,757.83-555,086.57

Finding the Fourth Proportional to 1,007,795.57, 1,390,757.83 and 555,086.57

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Solution

The fourth proportional to 1,007,795.57, 1,390,757.83 and 555,086.57 is: 766,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,795.57 : 1,390,757.83 = 555,086.57 : x
  2. Step 2: Convert to fraction form
    1,007,795.57/1,390,757.83 = 555,086.57/x
  3. Step 3: Cross multiply
    1,007,795.57x = 1,390,757.83 × 555,086.57
  4. Step 4: Simplify right side
    1,007,795.57x = 771,990,985,213.84
  5. Step 5: Solve for x
    x = 771,990,985,213.84/1,007,795.57
  6. Step 6: Final answer
    x = 766,019.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.